Ok. I play regularly, and I will admit. I hate tubes as much as I love the game. Which is a lot. However, I don't think they should be banned. It would give admins and mods just one more thing to deal with, not to mention the additional outcry from longtime tubers.
I agree with Animal66's idea. Idk if you can turn the damage down, but to me, that would be the solution to this.
If I get hit with a unrealistic projectile and get wounded, I'll turn around and pop 'im. I think in the long run, it would actually discourage the use of tubes, once tubers realize their disadvantage. Nobody would need to get banned, regulars could stay, and I would be happy.
Not that I'm not already...